This report describes the flight tests made at the Royal Aircraft Establishment on the Rolls-Royce Flying Bedstead to investigate the stability and control problems of a hovering jet-lift aircraft.nTests made with varying amounts of artificial stabilisation (including a few without stabilisation) showed that some artificial stabilisation was necessary in pitch and roll for operation in other than very favourable weather conditions. Yaw stabilisation was not essential for hovering flight.nThe main difficulty in flying the Flying Bedstead with artificial stabilisation was the height control, because of the slow response of the engines to throttle movements.
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